And james e



2 Sheets-Sheet 1.

(No Model.)

H. B. COOLEY, J. MQNOBLE & JQE. TREVOR.

PAPER FEEDING MACHINE.

No 530,328 Patented Dec. 4, 1894 -(No Model.) 2 Sheets- Sheet 2. H; B. GO-OLEY, J M. NOBLE & J. E TREVOR PAPER FEEDING MACHINE;

Patented Dec. 4, 1894'.

1mm mull.

UNITEI STATES.

PATENT OFFICE."

HENRY-B. COOLEY AND JOHN NOBLE, OF HARTFORD, CONNECTICUT, AND JAMES E. TREVOR, OF MANCHESTER, GLAND.

' PAPER-FEEDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 530,328, dated December 4, 1894.

Application fil January 17, 1894. Serial Nr497,2(l3- model.)

To all whom it may concern:

Be it kn own that we, HENRY B. COOLEY an JOHN M; NOBLE, citizens of the United States,

residing at Hartford, Connecticut, and JAMES E. TREVOR, a subject of the Queenof Great Britain, residing at Manchester, England, have invented certain new and useful Improvements in Paper-Feed Devices, of which the following is a specification.

Our invention relates to paper feeding devices and more particularly to that class of such devices in which suction is used to initially separate the successive sheets from the pile of paper for the feeding mechanism proper. a

Our objects are to increase the output of such devices by increasing the'speed at which they may be operated andby making the feeding continuous, avoiding the necessity of stopping the device to replenish the pile, as r by set screws.

is now generally the case; to constructa machine with fewer parts than is now found in these devices, thereby reducing the first cost and the cost of repairs, while securing a more 2 5 simple and effective mechanism for the purpose-desired. These and other objects we at-j tain by the mechanism hereinafter described andclaimed, with reference to the accompa: nying-drawings forming a part of the specifi- 3o cation.

In the drawingsz-Figure 1, is a rear'eleva.

secured to the'bed', C. This table is preferably inclined, as shown, so that the'pile of 1 5 paper which rests thereon will have its front end so disposed over the aperture, or opening, 1 D, in the: table that the front end of the-abettom sheet may be readily drawn away from the pile by the suction pipe,- E, which recip- 5o rocates across the line of centersof the two feedrolls, F, G, journaled insuitablebearings with its slotted end, K, adj ustably secured to in the frames, B, as hereinafter more fully described.

The table, A, may be secured to the frames in any suitable manner, as, for example, by bolts, h, passing through the said frames and lugs upon the under side of thetable; and the opening or aperture, D, in the table may be formed by cutting away a portion, I, and bending the same downward tangent to the feed rolls, making a guiding surface or apron for the paper as it is drawn through the feeding rolls. At the front end of the table is aseparator, J, preferably in the form of a metal fork said table by a set screw, and its fork projecting over the opening in the table, furnishing a support for the front end of the pile.

L, designates guide posts of suitable shape in cross section, providedwith slotted. projections,adjustably secured to the table The front set, it will be seen, extend downwardly through the opening,

keeping the sheet in proper alignment as it is drawn downward by the suction pipe.

ards supportingthe bed of the machine is a vided wane cam groove, P, in which travels a roller on one end of the link, Q, having its other end connectedto the lever, R,'fulorumed alt a, to the bed or framev of. the device, and pivotally connected bya double link,.b, to the suction pipe, E. This pipe connects with the j pump, T, which is operated from the shaft, M, by any suitable connections, such as the crank disk, 0, and rod, 0.

'1 The pump shown is reciprocating but it will be understood that any suitable air ex t hausting mechanism may be employed; and the pipe must of course be so connected thered with as to allow it to freely reciprocate to and from the bottom of the pile.

% Referringmore particularly tothe lconj struction of the feed rolls and their relation to the suction'pipe, it will vbe seen in Fig. 5, that the upper roll, F, consists of twolparts, f

f and f having a space between them suffn cient for the passage of the pipe, E, journaled in suitable boxes as and y, mounted in the side Ice.

frames, and connected by a web, g. This roll is recessed,as shown at s, to allow freepasm v 7s I J ournaled in suitable hearings in the standsage of the blank or sheet therethrough, and is placed diagonally above the lower roll, G, so that the axes of the two rolls may be in different vertical planes for the purpose of having I the path of motion of the pipe E, across the line of centers of the rolls. By this arrangement of the rolls the suction pipe will present the front end of the blank or sheet, in its descent, fairly upon the roll, G, when the said sheet comes tangent to this lower roll. The lower roll, G, is also made in 'two parts, as shown in Fig. 1, to allow the suction pipe, E, to pass between the rolls. The edge of the recess in the upper roll forms the grab which in the operation of the device follows closely upon the receding pipe, and

grips firmly the edge of the sheet to stop it from the pipe as the latter brings the said sheet tangent to the lower roll.

The cam groove in the disk, N, is preferably formed with a rest for a third of revolution at the top and bottom and a rise and fall of one sixth each on the side so that the pipe in .its extreme upper position will dwell a sufficient time to allow the suction to act upon the paper when the pile is slightly raised by the said pipe as it comes in contact therewith; while a similar rest is provided in the extreme lower position to allow the feeding rolls to pass the sheet which has been stripped from the pipeby the said rolls in the downward movement. The feeding rolls are so timed that they complete two or more revolutions while the suction pipe makes one reciprocation, thus securing an effective feeding for each sheet or blank.

To insure the better action of the suction upon the sheet we make the pipe, E, inclined, by cutting the said pipe away, at an angle less than the angle of repose of the pile, as shown at d, so that the heel of the pipe acts to slightly raise the pile from its support while the suction effectively separates the frontend of the sheet from the pile, drawing the said front end through the forked separator.

The feed rolls may be driven from the shaft, M, by any suitable gearing, as by a belt running from the pulley, Y, or they may be operated from any suitable part of the machine to which our feeding device may be attached.

While we have shown our device adapted for envelope machines, it is obvious that it may be applied to any machines in which paper or other flexible material is to be fed in successive sheets or blanks; and the form of the table, the shape and number of guides, may be varied to suit difierent requirements without departing from our invention; while the means for efiecting a reciprocation of the suction pipe is subject to the same conditions, though we have shown what we deem now to belthe preferable means for attaining this resu t.

From the foregoing description it will now be clear that as the heel of the pipe, E, com es in contact with and slightly raises the pile,

the suction which has been previously estab-' lished by the operation of the air pump will quickly draw the front end of the bottom sheet away from the pile which closes the end of the pipe and prevents further action upon the pile, the forked separator now intervening to thus keep the rest of the pile intact; and as the pipe descends, the upper feed roll will grip the sheet when it becomes tangent to the lower roll, thus stripping it from the pipe, and acting with the lower roll, the sheet will be drawn through and fed to the point desired. ,Meantime the pipe will have reached the extreme lower position and will dwell there until the said sheet has passed through the rolls, when the operation will be repeated.

By feeding from the bottom of the pile the operation may be continuous, since the pile may be constantly replenished without stopping the machine, which would otherwise be necessary if fed from the top; and furthermore, the pressure of the sheets above the one upon which the suction acts is utilized to keep the same rigid and prevents the tendency to displacement of the sheets, whereby all sheets are kept in alignment as presented to the feed rolls, while the work of the suction pipe is decreased. It will also be observed that in making the path of motion of the suction pipe across the line of centers of the feed rolls, we are enabled to dispense with the intervening mechanism usually employed for carrying the sheet after separation from the pile to the feed rolls, while the presentation of the sheet by the pipe directly upon the surface of the feed rolls secures a simple rotary feed for the sheets, without any reciprocating motion whatever.

A device made in accordance with our invention possesses many advantages over existing devices of the kind, and among these advantages we may state that it has fewer parts, contributing to simplicity of structure and operation, and consequent decrease in cost and expense of running and repairs.

To replenish the pile it is not necessary to stop the mechanism thus rendering the operation continuous, and the speed at which it may be run is materially greater, while the whole results in a greatly increased output.

What we claim is- 1. Apaper feeding device consisting of a table for supporting the pile of paper, feeding rolls journaled in bearings below said table, the upper roll recessed for the passage of the paper therethrough, and a reciprocating suction pipe passing between said rolls and adapted to separate the bottom sheet of the pile, and carry the same to the feeding rolls, and means for creating suction in said pipe, substantially as described.

2. In a paper feed device, the combination with the inclined table for supporting a pile of'pape'r flat upon the surface thereof, of the reciprocating suction pipe, the air pump, the feedingrolls j ournaled in bearings below said table, theu'pper roll recessed for the passage of the paper therethrough, the edge of the recess adapted to grip the sheet and strip it from the pipe as the said pipe descends,

substantially as described.

3. In a paper feed device the combination with the inclined table for supporting a pile of blanks, the feed rolls journaled in bearings on diiferent vertical planes below the table, the upper roll recessed for the passage of the blanks, the suction pipe having its path of motion across the line of centers of said rolls, a shaft journaled below the table, connections between said shafts and pipe for reciprocating the same, substantially as described.

4. In a paper feed device, the combination with the inclined table supporting the pile, the feedrolls journaled in bearings below the same, the upper roll recessed for the passage of the blanks, with the suction pipe and means for reciprocating said pipe once while the feed rolls make two or more revolutions, substantially as described. i.

5. In a paper feed device the combination with the apertured table, for supporting a pile of blanks, with the separator at the front end thereof, of feed rolls journaled in bearings below the table, the upper roll recessed for the passage of the blanks, the vertically moving suction pipe, the rotating shaft below the table provided with a caln controlling the movements of said pipe, whereby the pipe is brought in contact with the bottom sheet of the pile resting over the aperturein the table, substantially as described.

6. In a paper feed device, the combination with the table for supporting the pile of paper, of the feed rolls rotating in bearings below the same, the upper roll recessed for the passage of the paper, the suction pipe,

Ver with one end engaging the said cairn groove, whereby said pipe is caused to reciprocate between said rolls, substantially as described.

7. In a paper feed device, the combination with the apertured table for supporting the pile, provided with guides for said pile, one set of which projects through the aperture to guide the paper passing there-through, the re ciprocating suction pipe, and the feed rolls journaled in bearings below the tables, adapted to strip the sheet from said pipe in its descent, substantially as described.

8. A paper feed device consisting of an inclined apertured table supporting a pile of blanks flatly upon the same and over the apertures, a separator projecting over the aperture and supporting the end of the pile, a reciprocating suction pipe adapted to pass by the separator and raise the pile in its ascent and successively detach therefrom the bottom blank as it descends, with feeding rolls journaled below the table, the upper one recessed for thepassage of the blanks, substantially as described.

In testimony whereof We have signed our names to this specification in the presence of two subscribing witnesses.

HENRY B. oooLEY.

JOHN M. NOBLE. JAMES E. TREVOR.

Witnesses:

R. H. ROBERTS, JOHN DARBY. 

